This is from Julie at Two Tony's. It's got a great purple/blue color that doesn't require a garnish and it's easy to dial the sweetness up or down by subbing soda or skipping the simple syrup. Pomegranate is pretty dry, though, so some sweetness is needed.
2 oz. Hangar Wild Blueberry Vodka
2 oz. Pomegranate Juice
Splash Simple Syrup
Pour vodka, juice and syrup over ice in a rocks glass. Stir. Top with a splash of sprite or 7up.